CN201335081Y

CN201335081Y - Dismounting-proofing nut

Info

Publication number: CN201335081Y
Application number: CNU2008201804132U
Authority: CN
Inventors: 叶明丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-02
Filing date: 2008-12-02
Publication date: 2009-10-28
Anticipated expiration: 2018-12-02

Abstract

The utility model relates to a dismounting-proofing nut. The nut comprises a nut body (10) and at least two skew slots (12) wherein the skew slots (12) are arranged at the inner wall of an inner hole (11) of the nut body (10); and rolling bodies (20) are internally contained in the skew slots (12). The nut also comprises a close cover (30) which prevents blocking the rolling bodies (20). The outline of the nut body (10) is a hexagon, an octagon or a decagon, and the rolling bodies (20) take the shape of a sphere or a cylinder. With the adoption of the technical scheme, the dismounting torque of the dismounting-proofing nut is increased by one time at least, therefore, the dismounting-prevention nut is safe and reliable; in addition, the nut is installed conveniently, therefore, less screw thread can be damaged; the loss of the dismounting-proofing function caused by the slipping between a roller and a sliding rail, thereby improving the safety performance.

Description

Anti-disassembling nut

Technical field

The utility model relates to secure component, particularly the tightening nut of the anti-dismounting of high-tension line tower.

Background technique

Anti-disassembling nut of the prior art generally all is to adopt to establish the slideway of inclination in nut, is built-in with roller, and still, what be provided with at present all is single slideway, and anti-dismounting ability is relatively poor.In addition, roller and slideway are smooth surface, when the dismounting nut, are very easy between roller and the slideway produce skid, and have influence on the locking function of nut, also make the Security of this anti-disassembling nut be subjected to very big influence.

Summary of the invention

The utility model provides a kind of anti-disassembling nut, adopts at least two locking closures are set in nut, solves the indifferent technical problem of the anti-dismounting of single slideway in the prior art.Adopt setting cooperatively interacts on rolling element and the slideway convex tendon and groove in addition, further solve the technical problem of skidding between the roller and slideway in the prior art.

The scheme that the utility model solves the problems of the technologies described above is: this anti-disassembling nut comprises nut body, at least two chutes of nut body endoporus inwall setting, described each chute contains rolling element, described rolling element is spherical or cylindrical, the groove depth of described each chute is by deeply gradually shallow setting along the screw thread descent direction, this nut also comprises the capping that prevents to be used to block rolling element, and cylindrical shell to the small part that the nut body endoporus is inserted in this capping hides each chute.The shell portion of described capping hides each chute, and the axial clearance between this cylindrical shell base and the chute base is less than the rolling element diameter, and perhaps the cylindrical shell of described capping hides each chute fully.

The groove bottom of described at least two chutes is plane or arc shaped surface, and described chute is at least three, and above-mentioned chute is uniform along the nut body inner hole wall, and the external frame of nut body is hexagon, octagon or decagon.

Described rolling element rolling surface is provided with the convex tendon of many projectioies, described each chute groove bottom be provided with many with the convex tendon section configuration recessed groove that adapts, many grooves on described many convex tendons and each chute groove bottom are triangle, trapezoidal or square.

After the utility model adopts above-mentioned technological scheme, this anti-disassembling nut removal torque is doubled at least, safe and reliable, in addition, it is easy for installation, the screw thread that is destroyed is also fewer, can also avoid causing the forfeiture of anti-disassembling function because of skidding between roller and the slideway, has improved Safety performance.

Description of drawings

Fig. 1 is that the master of the utility model anti-disassembling nut looks cross-sectional schematic.

Fig. 2 is the cross-sectional schematic of overlooking of anti-disassembling nut.

Fig. 3 is the local enlarged diagram at I place among Fig. 1.

Embodiment

In conjunction with above-mentioned description of drawings specific embodiments of the present utility model.

By among Fig. 1 and Fig. 2 as can be known, this anti-disassembling nut comprises nut body 10, at least two chutes of nut body 10 endoporus, 11 inwall settings 12, described each chute 12 contains rolling element 20, described rolling element 20 is spherical or cylindrical, the groove depth of described each chute 12 is by deeply gradually shallow setting along the screw thread descent direction, this nut also comprises the capping 30 that prevents to be used to block rolling element 20, and cylindrical shell 31 to the small part that nut body 10 endoporus are inserted in this capping 30 hides each chute 12.The utility model has designed at least two locking mechanisms, and removal torque is doubled at least, and, owing to added capping 30, so just nut and rolling element need not be magnetized, simplify program, use also easily, also reduced cost simultaneously.At ordinary times, by capping sealing chute, prevent that rolling element breaks away from, when screwing in, bolt ejects capping, owing to be that the continued effect of capping of bolt is arranged, rolling element can not deviate from yet.

By among Fig. 1 as can be known, the groove bottom of described at least two chutes 12 is plane or arc shaped surface, described chute 12 is at least three, above-mentioned chute 12 is uniform along nut body 10 inner hole walls, the external frame of described nut body 10 is hexagon, octagon or decagon, nut itself also can be left-handed, can also be dextrorotation.Chute 12 can be provided with a plurality of, can design the quantity of chute according to purposes and to the requirement of Security, and nut also can adopt hexagon, octagon or decagon, also can adopt polygonal nut arbitrarily, can also adopt round nut or the like.

By among Fig. 3 as can be known, in order to prevent to skid between rolling element 20 and the chute 12, described rolling element 20 rolling surfaces are provided with the convex tendon 21 of many projectioies, described each chute 12 groove bottom be provided with many with the convex tendon 21 section configurations recessed groove 121 that adapts, many grooves 121 on described many convex tendons 21 and each chute 12 groove bottom are triangle, trapezoidal or square.

Cylindrical shell 31 parts of described capping 30 hide each chute 12, and the axial clearance between these cylindrical shell 31 bases and chute 12 bases is less than rolling element 20 diameters (as shown in Figure 2), and the cylindrical shell 31 of perhaps described capping 30 hides each chute 12 fully.

Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.

Claims

1. anti-disassembling nut, it is characterized in that: this nut comprises nut body (10), at least two chutes of nut body (10) endoporus (11) inwall setting (12), described each chute (12) contains rolling element (20), the groove depth of described each chute (12) is by deeply gradually shallow setting along the screw thread descent direction, this nut also comprises the capping (30) that prevents to be used to block rolling element (20), and cylindrical shell (31) to the small part that nut body (10) endoporus is inserted in this capping (30) hides each chute (12).

2. according to the described anti-disassembling nut of claim 1, it is characterized in that: the groove bottom of described at least two chutes (12) is the plane.

3. according to the described anti-disassembling nut of claim 1, it is characterized in that: the groove bottom of described at least two chutes (12) is an arc shaped surface.

4. according to claim 2 or 3 described anti-disassembling nuts, it is characterized in that: described chute (12) is at least three, and above-mentioned chute (12) is uniform along nut body (10) inner hole wall.

5. according to claim 2 or 3 described anti-disassembling nuts, it is characterized in that: the external frame of described nut body (10) is hexagon, octagon or decagon.

6. according to claim 2 or 3 described anti-disassembling nuts, it is characterized in that: described rolling element (20) rolling surface is provided with the convex tendon (21) of many projectioies, described each chute (12) groove bottom be provided with many with convex tendon (21) the section configuration recessed groove (121) that adapts.

7. according to the described anti-disassembling nut of claim 6, it is characterized in that: many grooves (121) on described many convex tendons (21) and each chute (12) groove bottom are triangle, trapezoidal or square.

8. according to claim 2 or 3 described anti-disassembling nuts, it is characterized in that: cylindrical shell (31) part of described capping (30) hides each chute (12), and the axial clearance between this cylindrical shell (31) base and chute (12) base is less than rolling element (20) diameter.

9. according to claim 2 or 3 described anti-disassembling nuts, it is characterized in that: the cylindrical shell (31) of described capping (30) hides each chute (12) fully.

10. according to claim 2 or 3 described anti-disassembling nuts, it is characterized in that: described rolling element (20) is for spherical or cylindrical.